/* Copyright (c) 2009-2010, Real-Time Innovations, Inc.
 * Copyright (c) 2010, Object Management Group, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * - Redistributions of source code must retain the above copyright notice,
 *   this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - Neither the names of the above copyright holders nor the names of their
 *   contributors may be used to endorse or promote products derived from
 *   this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL A COPYRIGHT HOLDER OR CONTRIBUTOR BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <omg/dds.hpp>
#include <example_type.hpp>

using dds::core::dynamic_ref_cast;
using dds::domain::DomainParticipantFactory;
using dds::domain::DomainParticipant;
using dds::sub::DataReader;
using dds::sub::DataReaderBase;
using dds::sub::LivelinessChangedStatus;
using dds::sub::LoanedSamples;
using dds::sub::RequestedDeadlineMissedStatus;
using dds::sub::RequestedIncompatibleQosStatus;
using dds::sub::Sample;
using dds::sub::SampleLostStatus;
using dds::sub::SampleRejectedStatus;
using dds::sub::Subscriber;
using dds::sub::SubscriberListener;
using dds::sub::SubscriptionMatchedStatus;


/* This example shows how a type-agnostic listener can be used to intercept
 * status changes on behalf of multiple readers.
 */


class MySubListener : public SubscriberListener
{
    virtual void on_requested_deadline_missed(const DataReaderBase& the_reader,
                                              const RequestedDeadlineMissedStatus& status)
    {
        // empty
    }
    
    virtual void on_requested_incompatible_qos(const DataReaderBase& the_reader,
                                               const RequestedIncompatibleQosStatus& status)
    {
        // empty
    }
    
    virtual void on_sample_rejected(const DataReaderBase& the_reader, 
                                    const SampleRejectedStatus& status)
    {
        // empty
    }
    
    virtual void on_liveliness_changed(const DataReaderBase& the_reader,
                                       const LivelinessChangedStatus& status)
    {
        // empty
    }
    
    virtual void on_data_available(const DataReaderBase& the_reader);
    
    virtual void on_subscription_matched(const DataReaderBase& the_reader, 
                                         const SubscriptionMatchedStatus& status)
    {
        // empty
    }
    
    virtual void on_sample_lost(const DataReaderBase& the_reader, 
                                const SampleLostStatus& status)
    {
        // empty
    }

    virtual void on_data_on_readers(const Subscriber& the_subscriber)
    {
        // empty
    }
};


static void subscriber_listener_example()
{
    // QoS and listener arguments are defaulted or overloaded:
    DomainParticipant dp =
        DomainParticipantFactory::get_instance().create_participant();
    SubscriberListener* listener = new MySubListener();
    Subscriber sub =
        dp.create_subscriber(dp.default_subscriber_qos(), listener);
    dp.close();
    delete listener;
}


void MySubListener::on_data_available(const DataReaderBase& the_reader)
{
    DataReader<Foo> typed_reader =
        dynamic_ref_cast<DataReader<Foo>, DataReaderBase>(the_reader);
    LoanedSamples<Foo> dt = typed_reader.take();    // take out a loan
    std::vector< Sample<Foo> > my_copy(dt.begin(),  // make a copy
                                       dt.end());
                                                    // auto return loan
}
